observations
Class NullQuantity

java.lang.Object
  observations.Quantity
      observations.NullQuantity

public class NullQuantity

extends Quantity

NullQuantity Special quantity without amount and unit.

Version:

1.0 2004-08-10

Author:

Sascha Hemminger

Constructor Summary

NullQuantity()
Constructs a new NullQuantity object.

Method Summary

java.lang.String

getAmountString() Returns null because there is no amount.

Methods inherited from class observations.Quantity

equals, getAmount, getUnit, isGreaterThan, isGreaterThanOrEqualTo, isLessThan, isLessThanOrEqualTo

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

NullQuantity

public NullQuantity()

Constructs a new NullQuantity object.

See Also:

Quantity.Quantity(double, Unit)

Method Detail

getAmountString

public java.lang.String getAmountString()

Returns null because there is no amount.

Overrides:

getAmountString in class Quantity

Returns:

null

See Also:

Quantity.getAmountString()